Improved machine for making eyeeiets



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IL'IIERS, PHOTo-L1THoaRAPMER. wAsHlNGToN. n. C.

,titled gatita aient @para ADOLPH DELKESOAMP. OF BROOKLYN, E.D.,'NEWAYORK,ASSIGNOR TO JAMES D. BACON. FOR ONE-THIRD, AND JOHN NORTH, F OR ON E-THIRD.

Letters Patent .N 96,401, dated November 2, 1869.

IMPROVEiD MACHINE FOR MAKING- BYELETS.

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The Schedule' referred to in these Letters Patent and making part ai' tha game To all whom it may concern.-

Be it known that I, AnoLPir DsnKEscaMP, of' ythe Eastern District ot' Brooklyn, in the county of Kings, and State of New York, have `invented a new and useful 1min-mentent in Eyelet-Machines, oll which the following is a t'nll,'clear, and exact description, referringr to the accompanying drawing, forming part of this specification, and in which Q Figure l represents a partlyfsectional front elevation of an eyelet-machine constructed in accordance with my improvement; Y

Figure 2, a transverse section, taken as indicated by the line a; x, in tig.'1; and

Figure 3, a p ably-sectional elevation of various dies and punches, with other working-parts or details, as in the act ot' operation.

Figures 4, 5, 6, and 7, represent the eyelet at dlt'- ferent stages ot its manufacture.

Similar letters of reference indicate corresponding parts.

My 'invention consists of new and useful improvements in machinery for making eyelets from a strip of sheet-metalby the action ot' punches, or formersand dies, in conjunction with a knife or Shearer, for cutting off the bottom or. closed end of t-he eyelet-blank, after it has been pressed into a cup-form, whereby a much more perfect eyelet is produced, without having recourse to annealing, and which may be set without any danger of splittin. Said invention also includes vvarious combinations and peculiarities in construction of the parts, for forming eyelets after the process or method herein referred to. l

Referring to the accompanying drawing- A represents the frame ot' the machine, which may be of any suitable description to carry the workingparts.

B is the main or driving-shaft, that has rotary motion communicated to it in any .proper manner, and is formed with a crank, C; v.also serves to carry grooved cams D E, a revolving stud, F, and a bevel-wheel, G, for imparting the necessary -motions to the working details or parts more immediately connected with the ibrmationof the eyelets. Thus the crank C serves to give an up-anddown reciprocating motion, within suitable guides, to a punch-block, H, carrying punches or former-s c,b, and c, which may be adjustable and removable.

The grooved cam D operates, through a lever, I, pivoted as at d, a horizontal sliding die-bar, J, having a'die, e, near its forward end, also carrying a horizontal driver, K.

The other groovcd cam,E, operates through a lever, L, pivoted as at f, aknife or shearer, M.

The revolving stud Fserves, in conjunction with a spring, N, to actua-te a lever, O, which, through apawl, aaotingonHatchet-wheel, h,'etfectsthefeed ordraught ythe cam S, and is provided with a stud, u, that gears with the inside of said cam, at its ring or periphery likewise, isy formed or provided with a stud, o, at its forward end.

The shaft R also carries a cam, U, that, in conjuncs tion with a spring, p, operatesa lever,A V, for'actuating a dscharger, q, to a die, s, withinv which the punch or former c works.

A discharger, t, is also provided the die e, which discharger is operated by its moving over an incline, W,

in or bythe sliding-action ofthe bar J, which latter reciprocates through a suitably-faced block, X, formed with a die, vu, and on to the face of which block the blank u is delivered from a die, c, as it is stamped out ofthe strip t', by the action of the punch c.

lVith the eXccptionott-he punches` or f ormers a, b, and c, the other immediately pertaining devices just described are, for the most part or wholly, intermittent, and timed to operate in succession or regular order, as will now be explained, in referring to the oper` ation of the machine, which timely action is secured by a proper construction ofthe several cams and other parts.

The operation is as follows:

The strip of brass i, which maybe wrapped on a reel or other suitable device, has its loose end passed over the' die fu, and entered between the rolls P P, when the machine is set going, after which the action is automatic, und does not necessarily require the presence of an attendant. P P being intermittent, the punch-block H, in coming down, causes, during each successive feed, the punch a to stamp or pierce out a blank in the form of a flat disk, al, which is deposited on the face of the block X.

The punch-block H then rises or recedes, and in due course the sliding die-bar J comes tin-ward, and causes its horizontal driver K to push the blank c1 over the preparatory cuppingdie u, when the ,die-barJ recedes 'and the punch l) comes down, and forces the hlank` through the tixed preparatory die .u into thefurther or secondary clipping-die c, of thc'bar J, thc punch a simultaneouslystamping out a new blank, the after operation on which, and on each blank in succession, is the same.

In the next advance stroke of the bar J, the cupped blank aa is carried forward out of the block X, and, iu

The feed established by these tolls such fbrward movement, is forced out of the die e, by the action of the discharger t, in or by its travel up the incline YV. A panse then cnsues in thel action of the die-bar J, during which the removing-bar T advances, and slightly rising and afterward falling at its front end, by the combined action of an incline, y, in

the cam S, und the springk causes the stud o to enter thecnpped blank a, and, in the receding motion of the bar T, to draw it over or into the die s, when the stud o moves forward out of the way, and the punch c comes down,and forces said cupped blank into the die s, which further forms and shapes it.

The knife or Shearer M then makes a rapid stroke backward and forward, cutting off the closed end of the cupped blank, which slightly protrndes through the dic s. After this, the knife M having retired and punch c moved out ot' the die 's, the discharger q is made to rise and force the finished eyelet a* out of' the die s, which eyelet will be swepto, or delivered from ofi' the face ot said die, by the next back-stroke ofthe stud o, as it conveys a succeeding cupped blank to the die s.

Figs. 4, 5, 6, and 7, represent the eyelet in its several stages ot' manufacture. Thus, wshows the blank as it is 'ormedfin the die Iu; a, as it is shaped byv the preparatory die u a, as it is formed in the diese and s and a, as it is delivered, a finished eyelet, from the die s.

From 4this description, it will be seen that all annealing may be dispensed'with, and that the eyelets are produced in a rapid and automatic manner, with out being drawn out or thinned oi at their bottom ends, as is the case by the usual method of punching them, and which causes them to split when set or fiattened down in the work to which they are applied, and which is avoided by my mode of making them, the punch or punches having no such action on the blank, and the knife, in shearingoff the closed end ofthe cup ed blank, leaving a square or lthick cud, of uniform so idity with senor the body of the eyelet, or thereabouts, and of a. better sha-pe or finish.

Whatis here claimed, and desired to besecured by Letters Patent, is-

l. The combination, in an eyelet machine, ofa stationary die, a corresponding punch, for cutting ont the planchets, an interinittingly-sliding die, and a formingpunch, corresponding thereto, for roughly shaping the` eyelct, a stationary die, and a in'ming-lnnich, corresponding thereto, for completing the form of the eyelet, and a device for cutting ofi' the vclosed end of the eyelet, the combination heilig and operating substantially-ns described. u

2. The combina-tion of the several dies specified in thel foregoing clause, with mechanism for transferring the planchet to thel ti'rst forming-die, and mechanism t'or transferring the partly-formed eyelet trom said first tbrmingwlie to the last or tiuishing-die, the combina tion being and operating substantially as described.

3. The combination of the former (1with the preparatory clipping-die u, and secondary clipping-dien, in the intermittenbly-reciprocating bar J, substantially vas described.

4.' The dischargcr t and incline W, in combination with the sliding bar J, and die c, formed therein, es-` sentially as herein set forth. l

5. The sliding die e and stationary die s, in combination with the driver K and removing-device T', substantially as described.

6. The sliding dies, discharger {,and die s, in combination with the removing-device T and knife M substantially as described.

7. 'lhe combination of the dischargers tand ,dies e and s, punch c, removing-device .l, and cutter M, sub'- stantially as described. f

.ADOLPH DELKESOAMP.

\Vitnesscs:

Fuso. HAYNES, HENRY PALMER. 

